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Open Standard Display Interfaces (lemmy.world)

submitted 2 months ago* (last edited 2 months ago) by [email protected] to c/[email protected]

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Hi there!

I'm having a look into creating a FPGA system with purely open standard and open source IPs (as well as open source code on my part). So far I have landed on a really good journal article looking into different open source IPs for the RISC-V open standard here: https://ieeexplore.ieee.org/document/8760205.

But now I have realized that I need some sort of display interface and can't find anything! I have read that DisplayPort is open-source, but I am pretty sure this only relates to the interface protocols and not the actual hardware itself. I may be wrong on this but I haven't been able to easily find anything on their standard licensing rules, other than a licence for their logo and brand name which doesn't seem very compatible with the ethos of the project.

Perhaps USB-C is the best solution.

Is anyone aware of any display interfaces that I could implement? I do not have a lot experience in video interfaces so would like some suggestions from people who likely know a lot more than I do :)

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[–] [email protected] 1 points 2 months ago

I know nothing of these display standards but you might wanna read this thread https://opencores.org/forum/Cores/0/3941

[–] [email protected] 1 points 2 months ago

DisplayPort standard is open. The interface is fully defined in the standard including the physical “hardware” layer. You can, and number of others have, made open source implementations for it. You will have to use some closed source elements provided by the FPGA to implement the physical layer.